diff --git a/audio.c b/audio.c
index f14a6a4..f15be22 100644
--- a/audio.c
+++ b/audio.c
@@ -40,7 +40,7 @@ void AUDIO_PlayBeep(BEEP_Type_t Beep)
 	if (Beep != BEEP_880HZ_60MS_DOUBLE_BEEP &&
 	    Beep != BEEP_500HZ_60MS_DOUBLE_BEEP &&
 	    Beep != BEEP_440HZ_500MS &&
-#ifndef ENABLE_FEAT_F4HWN
+#ifdef ENABLE_DTMF_CALLING
 	    Beep != BEEP_880HZ_200MS &&
 	    Beep != BEEP_880HZ_500MS &&
 #endif
diff --git a/audio.h b/audio.h
index 98161a0..e27b437 100644
--- a/audio.h
+++ b/audio.h
@@ -29,7 +29,7 @@ enum BEEP_Type_t
 	BEEP_1KHZ_60MS_OPTIONAL,
 	BEEP_500HZ_60MS_DOUBLE_BEEP_OPTIONAL,
 	BEEP_440HZ_500MS,
-#ifndef ENABLE_FEAT_F4HWN
+#ifdef ENABLE_DTMF_CALLING
 	BEEP_880HZ_200MS,
 	BEEP_880HZ_500MS,
 #endif